dc7d0dea12
o Introduce PUC_PORT_TYPE_UART so that we can attach to uart(4), o Introduce port sub-types (eg PUC_PORT_UART_NS8250, PUC_PORT_UART_Z8530) to handle different hardware and determine resource sizes. o Introduce two new IVARs: PUC_IVAR_SUBTYPE and PUC_IVAR_REGSHFT. Both are used by uart(4) to get sufficient information to talk to the HW. o Introduce PUC_FLAGS_ALTRES to tell puc(4) to try memory mapped I/O if I/O port space cannot be allocated, or vice versa. o Have ports of type PUC_PORT_TYPE_COM attach to uart(1) if attaching to sio(4) fails (due to not having the sio driver). o Put struct puc_device_description in struct puc_softc instead of having a pointer to a device description in the softc. This allows us to create device descriptions on the fly without having to use malloc() or otherwise have them staticly defined. o Move puc_find_description() from puc.c to puc_pci.c as it's specific to PCI. o Add EBUS and SBUS frontends for use on sparc64. Note that the P in puc stands for PCI, so we kinda mess things up here. It's too soon to worry about it though. We'll know what to do about it in time. NOTE: This commit changes the behaviour of puc(4) to not quieten the device probe and attach for child devices. The uart(4) driver provides additional device description that is valuable to have.
294 lines
8.4 KiB
C
294 lines
8.4 KiB
C
/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
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/*-
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* Copyright (c) 2002 JF Hay. All rights reserved.
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* Copyright (c) 2000 M. Warner Losh. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Copyright (c) 1996, 1998, 1999
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* Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_puc.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#define PUC_ENTRAILS 1
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#include <dev/puc/pucvar.h>
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extern const struct puc_device_description puc_devices[];
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int puc_config_win877(struct puc_softc *);
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static const struct puc_device_description *
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puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend,
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uint32_t sprod)
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{
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int i;
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#define checkreg(val, index) \
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(((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)])
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for (i = 0; puc_devices[i].name != NULL; i++) {
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if (checkreg(vend, PUC_REG_VEND) &&
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checkreg(prod, PUC_REG_PROD) &&
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checkreg(svend, PUC_REG_SVEND) &&
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checkreg(sprod, PUC_REG_SPROD))
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return (&puc_devices[i]);
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}
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#undef checkreg
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return (NULL);
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}
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static int
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puc_pci_probe(device_t dev)
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{
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uint32_t v1, v2, d1, d2;
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const struct puc_device_description *desc;
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if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
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return (ENXIO);
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v1 = pci_read_config(dev, PCIR_VENDOR, 2);
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d1 = pci_read_config(dev, PCIR_DEVICE, 2);
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v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
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d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
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desc = puc_find_description(v1, d1, v2, d2);
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if (desc == NULL)
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return (ENXIO);
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device_set_desc(dev, desc->name);
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return (0);
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}
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static int
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puc_pci_attach(device_t dev)
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{
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uint32_t v1, v2, d1, d2;
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v1 = pci_read_config(dev, PCIR_VENDOR, 2);
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d1 = pci_read_config(dev, PCIR_DEVICE, 2);
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v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
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d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
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return (puc_attach(dev, puc_find_description(v1, d1, v2, d2)));
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}
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static device_method_t puc_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, puc_pci_probe),
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DEVMETHOD(device_attach, puc_pci_attach),
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DEVMETHOD(bus_alloc_resource, puc_alloc_resource),
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DEVMETHOD(bus_release_resource, puc_release_resource),
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DEVMETHOD(bus_get_resource, puc_get_resource),
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DEVMETHOD(bus_read_ivar, puc_read_ivar),
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DEVMETHOD(bus_setup_intr, puc_setup_intr),
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DEVMETHOD(bus_teardown_intr, puc_teardown_intr),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{ 0, 0 }
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};
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static driver_t puc_pci_driver = {
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"puc",
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puc_pci_methods,
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sizeof(struct puc_softc),
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};
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DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
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DRIVER_MODULE(puc, cardbus, puc_pci_driver, puc_devclass, 0, 0);
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#define rdspio(indx) (bus_space_write_1(bst, bsh, efir, indx), \
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bus_space_read_1(bst, bsh, efdr))
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#define wrspio(indx,data) (bus_space_write_1(bst, bsh, efir, indx), \
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bus_space_write_1(bst, bsh, efdr, data))
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#ifdef PUC_DEBUG
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static void
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puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir,
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u_int efdr)
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{
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u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17;
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u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32;
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cr00 = rdspio(0x00);
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cr01 = rdspio(0x01);
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cr04 = rdspio(0x04);
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cr09 = rdspio(0x09);
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cr0d = rdspio(0x0d);
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cr14 = rdspio(0x14);
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cr15 = rdspio(0x15);
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cr16 = rdspio(0x16);
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cr17 = rdspio(0x17);
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cr18 = rdspio(0x18);
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cr19 = rdspio(0x19);
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cr24 = rdspio(0x24);
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cr25 = rdspio(0x25);
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cr28 = rdspio(0x28);
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cr2c = rdspio(0x2c);
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cr31 = rdspio(0x31);
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cr32 = rdspio(0x32);
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printf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, "
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"cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, "
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"cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09,
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cr0d, cr14, cr15, cr16, cr17,
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cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32);
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}
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#endif
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int
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puc_config_win877(struct puc_softc *sc)
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{
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u_char val;
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u_int efir, efdr;
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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struct resource *res;
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res = sc->sc_bar_mappings[0].res;
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bst = rman_get_bustag(res);
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bsh = rman_get_bushandle(res);
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/* configure the first W83877TF */
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bus_space_write_1(bst, bsh, 0x250, 0x89);
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efir = 0x251;
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efdr = 0x252;
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val = rdspio(0x09) & 0x0f;
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if (val != 0x0c) {
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printf("conf_win877: Oops not a W83877TF\n");
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return (ENXIO);
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}
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#ifdef PUC_DEBUG
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printf("before: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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val = rdspio(0x16);
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val |= 0x04;
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wrspio(0x16, val);
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val &= ~0x04;
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wrspio(0x16, val);
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wrspio(0x24, 0x2e8 >> 2);
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wrspio(0x25, 0x2f8 >> 2);
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wrspio(0x17, 0x03);
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wrspio(0x28, 0x43);
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#ifdef PUC_DEBUG
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printf("after: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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bus_space_write_1(bst, bsh, 0x250, 0xaa);
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/* configure the second W83877TF */
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bus_space_write_1(bst, bsh, 0x3f0, 0x87);
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bus_space_write_1(bst, bsh, 0x3f0, 0x87);
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efir = 0x3f0;
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efdr = 0x3f1;
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val = rdspio(0x09) & 0x0f;
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if (val != 0x0c) {
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printf("conf_win877: Oops not a W83877TF\n");
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return(ENXIO);
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}
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#ifdef PUC_DEBUG
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printf("before: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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val = rdspio(0x16);
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val |= 0x04;
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wrspio(0x16, val);
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val &= ~0x04;
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wrspio(0x16, val);
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wrspio(0x24, 0x3e8 >> 2);
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wrspio(0x25, 0x3f8 >> 2);
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wrspio(0x17, 0x03);
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wrspio(0x28, 0x43);
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#ifdef PUC_DEBUG
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printf("after: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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bus_space_write_1(bst, bsh, 0x3f0, 0xaa);
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return (0);
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}
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#undef rdspio
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#undef wrspio
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